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Science 3 July 1987:
Vol. 237. no. 4810, pp. 59 - 60
DOI: 10.1126/science.237.4810.59
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Articles

Fossil Mycorrhizae: A Case for Symbiosis

SARA P. STUBBLEFIELD 1, T. N. TAYLOR 1, and JAMES M. TRAPPE 2

1 Department of Botany, The Ohio State University, Columbus, OH 43210.
2 Pacific Northwest Forest and Range and Experiment Station, Corvallis, OR 97331.

Vesicular-arbuscular mycorrhizae are significant in the physiology and ecology of extant vascular plants, and they may also have played a major role in the origin of the vascular land flora. The case for fossil vesicular-arbuscular mycorrhizae rests upon hyphae and chlamydospore-like bodies in several Paleozoic taxa, but fossil arbuscles are unknown to date. Specimens from the Triassic of Antarctica represent the first known occurrence of arbuscles in the fossil record.

Submitted on January 9, 1987
Accepted on April 10, 1987

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Science. ISSN 0036-8075 (print), 1095-9203 (online)